<template>
  <el-container>
    <div v-if="roleId === 1 ">
      <el-header>
        <el-row :gutter="40" class="panel-group">
          <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel">
              <div class="card-panel-icon-wrapper icon-people">
                <svg-icon icon-class="peoples" class-name="card-panel-icon" />
              </div>
              <div class="card-panel-description">
                <div class="card-panel-text">
                  学生人数
                </div>
                <count-to :start-val="0" :end-val=end :duration="2600" class="card-panel-num" />
              </div>
            </div>
          </el-col>
          <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel">
              <div class="card-panel-icon-wrapper icon-message">
                <svg-icon icon-class="message" class-name="card-panel-icon" />
              </div>
              <div class="card-panel-description">
                <div class="card-panel-text">
                  题目数量
                </div>
                <count-to :start-val="0" :end-val=end1 :duration="3000" class="card-panel-num" />
              </div>
            </div>
          </el-col>
          <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel">
              <div class="card-panel-icon-wrapper icon-money">
                <svg-icon icon-class="dict" class-name="card-panel-icon" />
              </div>
              <div class="card-panel-description">
                <div class="card-panel-text">
                  试卷数量
                </div>
                <count-to :start-val="0" :end-val=end2 :duration="3200" class="card-panel-num" />
              </div>
            </div>
          </el-col>
          <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel">
              <div class="card-panel-icon-wrapper icon-shopping">
                <svg-icon icon-class="job" class-name="card-panel-icon" />
              </div>
              <div class="card-panel-description">
                <div class="card-panel-text">
                  专业数量
                </div>
                <count-to :start-val="0" :end-val=end3 :duration="3600" class="card-panel-num" />
              </div>
            </div>
          </el-col>
        </el-row>
      </el-header>
      <el-row :gutter="20">
        <el-col :span="12"> <div id="myChart" :style="{width: '500px', height: '500px'}"></div></el-col>
        <el-col :span="12">  <div id="myChart2" :style="{width: '500px', height: '500px'} " > </div></el-col>
      </el-row>
    </div>
    <div v-else>
      欢迎来到考试系统
    </div>

  </el-container>


</template>

<script>

import echarts from "echarts";
import axios from "axios";
import {getCounts, getHardCounts,getSvgDetails} from "@/api/store/count";
import { login, logout, getInfo } from '@/api/login'
import CountTo from "vue-count-to";
export default {
  name: 'hello',
  components: {
    CountTo
  },
  data () {
    return {
      roleId  : undefined,
      end:undefined,
      end1:undefined,
      end2:undefined,
      end3:undefined,
    }
  },
  created() {
    if(this.$store.state.user.roles.indexOf("admin") > -1){
      this.roleId = 1;
    }else {
      this.roleId = 2;
    }
  },
  mounted(){
    this.drawLine();
    this.drawLine2();
    this.getSvgCounts();
    //this.getUserRole();
  },

  methods: {
    // 获取用户信息
    getSvgCounts(){
      getSvgDetails().then((res)=>{
        this.end = res.data.peopleCounts;
        this.end1 = res.data.quesCounts;
        this.end2 = res.data.paperCounts;
        this.end3 = res.data.magorCounts;
      })
    },

    drawLine(){
      // 基于准备好的dom，初始化echarts实例
      let myChart = echarts.init(document.getElementById('myChart'))
      // 绘制图表
      getCounts().then((res)=>{
        myChart.setOption({
          title: { text: '题目数量' },
          tooltip: {},
          legend: {
            data:['题目数量']
          },
          xAxis: {
            type: 'category',
            data: ["单选题","简答题","判断题","多选题"]
          },
          yAxis: { type: 'value'},
          series: [{
            name: '数量',
            type: 'bar',
            showBackground: true,
            backgroundStyle: {
              color: 'rgba(150, 180, 180, 0.2)'
            },
            data: [res.data.singleCount,res.data.manyCount,res.data.judgeCount,res.data.answerCount]
          }]
        });
      })
    },
    drawLine2(){
      // 基于准备好的dom，初始化echarts实例
      let myChart = echarts.init(document.getElementById('myChart2'))
      // 绘制图表
      getHardCounts().then((res)=>{
        myChart.setOption({
          title: {
            text: '难度分析',
            subtext: '',
            left: 'center'
          },
          tooltip: {
            trigger: 'item'
          },
          legend: {
            orient: '数量',
            left: 'left'
          },
          series: [
            {
              name: '题目数量',
              type: 'pie',
              radius: '50%',
              data: [
                { value: res.data.simpleCount, name: '简单' },
                { value: res.data.commonCount, name: '中等' },
                { value: res.data.hardCount, name: '困难' },
              ],
              emphasis: {
                itemStyle: {
                  shadowBlur: 10,
                  shadowOffsetX: 0,
                  shadowColor: 'rgba(0.5, 0.5, 0.5, 0.5)'
                }
              }
            }
          ]
        });
      })
    },


  }
}
</script>

<style lang="scss" scoped>
.panel-group {
  margin-top: 18px;

  .card-panel-col {
    margin-bottom: 32px;
  }

  .card-panel {
    height: 108px;
    cursor: pointer;
    font-size: 12px;
    position: relative;
    overflow: hidden;
    color: #666;
    background: #fff;
    box-shadow: 4px 4px 40px rgba(0, 0, 0, .05);
    border-color: rgba(0, 0, 0, .05);

    &:hover {
      .card-panel-icon-wrapper {
        color: #fff;
      }

      .icon-people {
        background: #40c9c6;
      }

      .icon-message {
        background: #36a3f7;
      }

      .icon-money {
        background: #f4516c;
      }

      .icon-shopping {
        background: #34bfa3
      }
    }

    .icon-people {
      color: #40c9c6;
    }

    .icon-message {
      color: #36a3f7;
    }

    .icon-money {
      color: #f4516c;
    }

    .icon-shopping {
      color: #34bfa3
    }

    .card-panel-icon-wrapper {
      float: left;
      margin: 14px 0 0 14px;
      padding: 16px;
      transition: all 0.38s ease-out;
      border-radius: 6px;
    }

    .card-panel-icon {
      float: left;
      font-size: 48px;
    }

    .card-panel-description {
      float: right;
      font-weight: bold;
      margin: 26px;
      margin-left: 0px;

      .card-panel-text {
        line-height: 18px;
        color: rgba(0, 0, 0, 0.45);
        font-size: 16px;
        margin-bottom: 12px;
      }

      .card-panel-num {
        font-size: 20px;
      }
    }
  }
}

@media (max-width:550px) {
  .card-panel-description {
    display: none;
  }

  .card-panel-icon-wrapper {
    float: none !important;
    width: 100%;
    height: 100%;
    margin: 0 !important;

    .svg-icon {
      display: block;
      margin: 14px auto !important;
      float: none !important;
    }
  }
}
</style>
